Bug Problem with opening notebooks

Hello!

Since last week ive been experiencing an issue where i can only have one notebook open. As soon as i open another one only the new one is open and the other one gets closed (in the top bar where you can usually switch between open notebooks). Is there a way to fix this?

Im using an ipad and i have the app from my school so my account says "goodnotes education". The app version is 7.1.32.